GB2138438A - Shaving composition - Google Patents
Shaving composition Download PDFInfo
- Publication number
- GB2138438A GB2138438A GB08310640A GB8310640A GB2138438A GB 2138438 A GB2138438 A GB 2138438A GB 08310640 A GB08310640 A GB 08310640A GB 8310640 A GB8310640 A GB 8310640A GB 2138438 A GB2138438 A GB 2138438A
- Authority
- GB
- United Kingdom
- Prior art keywords
- component
- shaving composition
- weight percent
- shaving
- composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 76
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims abstract description 21
- 229920000642 polymer Polymers 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003906 humectant Substances 0.000 claims abstract description 8
- 239000000314 lubricant Substances 0.000 claims abstract description 8
- 239000003755 preservative agent Substances 0.000 claims abstract description 7
- 230000002335 preservative effect Effects 0.000 claims abstract description 7
- QELSKZZBTMNZEB-UHFFFAOYSA-N propylparaben Chemical compound CCCOC(=O)C1=CC=C(O)C=C1 QELSKZZBTMNZEB-UHFFFAOYSA-N 0.000 claims description 12
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 7
- 239000000194 fatty acid Substances 0.000 claims description 7
- 229930195729 fatty acid Natural products 0.000 claims description 7
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 6
- 150000004665 fatty acids Chemical class 0.000 claims description 6
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical group [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 6
- -1 alkali metal salts Chemical class 0.000 claims description 5
- 235000010232 propyl p-hydroxybenzoate Nutrition 0.000 claims description 5
- 239000004405 propyl p-hydroxybenzoate Substances 0.000 claims description 5
- 229960003415 propylparaben Drugs 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerol group Chemical group OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 4
- ZCTXEAQXZGPWFG-UHFFFAOYSA-N imidurea Chemical compound O=C1NC(=O)N(CO)C1NC(=O)NCNC(=O)NC1C(=O)NC(=O)N1CO ZCTXEAQXZGPWFG-UHFFFAOYSA-N 0.000 claims description 4
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- 235000019359 magnesium stearate Nutrition 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical group CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 239000000454 talc Substances 0.000 claims description 3
- 229910052623 talc Inorganic materials 0.000 claims description 3
- CHHHXKFHOYLYRE-UHFFFAOYSA-M 2,4-Hexadienoic acid, potassium salt (1:1), (2E,4E)- Chemical group [K+].CC=CC=CC([O-])=O CHHHXKFHOYLYRE-UHFFFAOYSA-M 0.000 claims description 2
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 2
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 239000001506 calcium phosphate Substances 0.000 claims description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 claims description 2
- 235000011010 calcium phosphates Nutrition 0.000 claims description 2
- 239000000378 calcium silicate Substances 0.000 claims description 2
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 2
- 235000012241 calcium silicate Nutrition 0.000 claims description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 2
- 235000019864 coconut oil Nutrition 0.000 claims description 2
- 239000003240 coconut oil Substances 0.000 claims description 2
- 239000003599 detergent Substances 0.000 claims description 2
- 125000004494 ethyl ester group Chemical group 0.000 claims description 2
- 235000011187 glycerol Nutrition 0.000 claims description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 2
- 239000001095 magnesium carbonate Substances 0.000 claims description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 2
- 235000014380 magnesium carbonate Nutrition 0.000 claims description 2
- 239000000391 magnesium silicate Substances 0.000 claims description 2
- 229910052919 magnesium silicate Inorganic materials 0.000 claims description 2
- 235000019792 magnesium silicate Nutrition 0.000 claims description 2
- ZADYMNAVLSWLEQ-UHFFFAOYSA-N magnesium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[Mg+2].[Si+4] ZADYMNAVLSWLEQ-UHFFFAOYSA-N 0.000 claims description 2
- 235000010241 potassium sorbate Nutrition 0.000 claims description 2
- 239000004302 potassium sorbate Substances 0.000 claims description 2
- 229940069338 potassium sorbate Drugs 0.000 claims description 2
- 229940037001 sodium edetate Drugs 0.000 claims description 2
- 239000000600 sorbitol Substances 0.000 claims description 2
- 235000012222 talc Nutrition 0.000 claims description 2
- 230000000699 topical effect Effects 0.000 claims description 2
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 claims description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims 1
- 229910002027 silica gel Inorganic materials 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- LXCFILQKKLGQFO-UHFFFAOYSA-N methylparaben Chemical compound COC(=O)C1=CC=C(O)C=C1 LXCFILQKKLGQFO-UHFFFAOYSA-N 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000000049 pigment Substances 0.000 description 5
- 238000009472 formulation Methods 0.000 description 4
- 235000010270 methyl p-hydroxybenzoate Nutrition 0.000 description 4
- 239000004292 methyl p-hydroxybenzoate Substances 0.000 description 4
- 229960002216 methylparaben Drugs 0.000 description 4
- 239000004705 High-molecular-weight polyethylene Substances 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- QPJVMBTYPHYUOC-UHFFFAOYSA-N methyl benzoate Chemical compound COC(=O)C1=CC=CC=C1 QPJVMBTYPHYUOC-UHFFFAOYSA-N 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229920003169 water-soluble polymer Polymers 0.000 description 2
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000003377 anti-microbal effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000001175 calcium sulphate Substances 0.000 description 1
- 235000011132 calcium sulphate Nutrition 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- SOROIESOUPGGFO-UHFFFAOYSA-N diazolidinylurea Chemical compound OCNC(=O)N(CO)C1N(CO)C(=O)N(CO)C1=O SOROIESOUPGGFO-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000002538 fungal effect Effects 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 229960000587 glutaral Drugs 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000643 oven drying Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q9/00—Preparations for removing hair or for aiding hair removal
- A61Q9/02—Shaving preparations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/86—Polyethers
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dermatology (AREA)
- Birds (AREA)
- Epidemiology (AREA)
- Cosmetics (AREA)
Abstract
A solid shaving composition comprising: a. a water soluble polyethylene oxide polymer of a molecular weight of 400,000 or less in an amount ranging from 1 to 65 weight percent. b. a trackability component in an amount ranging from 20 to 80 weight percent. c. a preservative component in an amount ranging from 0.005 to 7.5 weight percent and d. an anti-caking component in an amount ranging from 1 to 20 weight percent. The composition of the invention may include a humectant component in an amount of up to 20 weight percent and/or a lubricant component in an amount of up to 10 weight percent.
Description
SPECIFICATION
Shaving composition
This invention relates to shaving compositions useful in application during the shaving process.
More particularly, this invention relates to shaving compositions comprising water soluble polyethylene oxide polymers. Still more particularly, this invention relates to shaving compositions comprising water soluble polyethylene oxide polymers having a molecular-weight of 400,000 or less, a trackability component, a preservative component, an anti-caking component, and, optionally, a lubricant component, and/or a humectant component.
The American marketplace is replete with a wide variety of shaving compositions. The vast majority of these shaving compositions are soap or surfactant based aerosol foams. These products are heavily advertized and widely used in the USA. The more traditionally inclined shaver often employs the shaving brush/soap dish method for applying a preparation to the skin surface prior to the shaving process. However, whatever the process, the shaver must store and handle the relatively bulky containers necessary for these shaving compositions. It would be desirable for a variety of applications if the bulk and weight of the shaving composition could be reduced.
To this end, workers in the field have developed a variety of new shaving compositions.
Several of these compositions contain high molecular weight, water soluble polymers and other ingredients to facilitate the passage of the razor blade over the skin surface and to protect the skin from the abrading action of the razor edge. U.S. Patent Nos. 3,811,349 and 3,956,951 disclose shaving compositions comprising high molecular weight polyethylene oxide polymers of a molecular weight of about 4,000,000. U.S. Patent No. 3,811,349 discloses a solid aqueous solution of the polyethylene oxide polymer while U.S. Patent No. 3,956,951 discloses a simple solvent-free polyethylene oxide tablet. Testing has shown that neither of these compositions is particularly effective.
A somewhat different approach is illustrated in U.S. Patent No. 4,291,463 which teaches a polyethylene oxide coating applied to a razor blade for lubrication purposes.
The shaving composition of the invention comprises a water soluble polyethylene polymer having a molecular weight of 400,000 or less, a suitable trackability component, a preservative component and an anti-caking component. Optionally, a lubricant component and/or a humectant component may also be employed. This composition is particularly useful when moulded into an effective solid form which can be rubbed over the surface of the user's skin prior to the application of the blade razor. Application of the shaving composition of this invention acts to soften the hair, add moisture to the skin, retain it in place by the action of a micro-protective polymer film layer which, in turn, provides a visual indication to the user trackability) of the path of the razor blade over the skin surface as well as the extent of the initial coverage of the composition upon application.
According to the present invention there is provided a solid shaving composition comprising:
a. a water soluble polyethylene oxide polymer of a molecular weight of 400,000 or less in an amount ranging from 1 to 65 weight percent;
b. a trackability component in an amount ranging from 20 to 80 weight percent:
c. a preservative component in an amount ranging from 0.005 to 7.5 weight percent and
d. an anti-caking component in an amount ranging from 1 to 20 weight percent.
The composition of the present invention may further include a humectant component in an amount of up to 20 weight percent. Furthermore, the composition may additionally include a lubricant component in an amount of up to 10 weight percent.
A major component in this shaving composition is water soluble polyethylene oxide having a molecular weight of 400,000 or less. The polyethylene oxide polymer is composed of repeating units of the form:
wherein the degree of polymerization, n, is such that the molecular weight of the corresponding high polymer is less than about 400,000. This polymer hydrogen bonds strongly with water.
One particularly suitable source of supply for this polymer has been Polyox WSR N series of resins produced by the UNION Carbide Company. In particular, Polyox WSR N-3000 having an approximate molecular weight of 400,000 has been effective. The polyethylene oxides of molecular weight of 400,000 or less have proven to be particularly effective due to their shear stability characteristics which are necessary for shaving applications, particularly at temperatures in the range of 40"C to 80"C, especially when compared to polyethylene oxides of higher molecular weight such as those found in the Polyox WSR series which have molecular weights of 600,000 and above.The improved shear stability characteristic allows for consistent uniformity of the polymeric film which is produced when the shaving composition is applied to the skin surface of the user.
The prior art shaving compositions, particularly those which employ polyethylene oxides having molecular weights in the range of 4,000,000, have been shown through testing to be significantly inferior in performance to the shaving composition of this invention which utilizes polyethylene oxides of molecular weights of 400,000 or less. In particular, the high molecular weight polyethylene oxides, when employed as shaving compositions, dry out very rapidly on the skin surface and, consequently, do not allow sufficient time to complete a shaving operation.
Additionally, the high molecular weight polyethylene oxide shaving compositions cause the blade razor to clog easily in that these polymers form a gel-like, stringy mixture on the skin surface of the user due to the longer length of these particular molecules. This stringyness problem is not unique to the polyethylene oxides having molecular weights of 4,000,000 and above, since the problem extends down to the range of molecular weights of about 900,000.
The use, therefore, of polyethylene oxide polymers of 400,000 molecular weight or less is, therefore, a significant improvement over the water-based polymers disclosed in the prior art.
It has also been found that it is very desirable to provide a trackability characteristic to the shaving composition such that the user can ascertain those portions of the skin surface to which the shaving composition has been applied, and also those portions of the skin surface over which the razor has already passed during the shaving operation. In some instances, it may be desirable to combine a pigment with a fatty acid-based molecule to produce a trackability agent for inclusion into the shaving composition. In general, the longer carbon chain fatty acid molecules will produce compositions with better lubrication and dispersion characteristics, reaching an optimum with lauric acid. The pigments for use in such a trackability agent should be very fine in particle size, in the range of 200 to 400 mesh or finer.A few of the suitable pigments for use in the trackability agent are titanium oxide, zinc oxide, calcium sulphate, calcium carbonate, talc, and diatomaceous earth. In addition to the use of pigments in the trackability agent, it is also possible to incorporate dyes which complex directly with the water soluble polymer. Such dyes, however, should bond semi-permanently to the polyethylene oxide such that the dye is not released to the surface of the skin or elsewhere in order that the overall cleanliness of the shaving operation be maximized. One tracking agent that has displayed excellent characteristics is Igepon, produced and marketed by GAF Corporation. Igepon is a sulfa ethyl ester derived from isothionic acid and a coconut oil-based fatty acid of the general formula RCOOCH2CH2SO3Na, where R is an alkyl group.The use of Igepon provides for a shaving composition with excellent tracking characteristics and, further, does not require the addition of a pigment to the compoition. Substitutes for Igepon include stearic acid and other soap-forming fatty acids and their alkali metal salts. Detergents suitable for topical application such as Naccoral may also be used as a part of the trackability component.
Additionally, since the prior art compositions do not contain trackability components, such compositions are essentially invisible upon application. When trackability agents are incorporated into these compositions, the stringy texture of the applied composition becomes visually apparent to the user. This visual characteristic has been found to have a decidedly negative effect during consumer testing.
It is common in the formulation of such polymeric compositions to provide for a preservative component within the system such that bacterial and fungal growth are prevented within the composition. Many ingredients are known in the art for this use, including potassium sorbate, glutaraldehyde, methylparaben, propylparaben, sodium edetate, and various combinations thereof. One such combination which has proved to be highly satisfactory for use in the shaving composition of this invention is the combination of methylparaben (p-hydrozy benzoic acid methyl ester), propylparaben (p-hydroxy benzoic acid propyl ester), and an anti-microbic composition produced by Sutton Labs of Chatham, New Jersey, comprising imidazolidinylurea, labelled Germall 11 5.
Another component which has been found to be desirable for inclusion within this shaving composition is an anti-caking agent which aids in flow during the forming of the shaving composition into suitably shaped solids and also prevents lumping during the compression step.
Many such chemicals are well known in the art. Particularly useful are silica gels, one of the most effective of which is a synthetic composition produced by Davidson Chemical, a Division of
Grace Chemicals, Baltimore, Md., called Syloid 244. Other useful anti-caking chemicals include calcium phosphate, magnesium carbonate, calcium silicate, magnesium silicate, and talc.
Additionally, a lubricant component may be included in the composition. In some situations when the composition is formed into its desired final shape by compression within a mould, the addition of a lubricant component such as magnesium stearate or zinc stearate will act to effectively prevent sticking, packing or capping of a tablet or wafer during its formation.
A further component which may be included in the shaving composition is a humectant material. The humectant aids in providing moisturization for the skin during a shaving operation.
One such chemical which has proved to be particularly effective is glycerin. Other useful chemicals include propylene glycol and sorbitol.
The various components may be combined into the shaving composition of this invention in the proportions set forth in Table 1 below.
TABLE 1
COMPONENT USABLE RANGE (WT %)
Igepon 20%-80%
Polyox WSR N-3000 (Polyethelene Oxide) 1 %-65% Methylparaben 0.05%-2.5%
Propylparaben 0.05%-2.5%
Germall 115 0.05%-2.5%
Syloid 244 1%-20%
Magnesium Stearate 0%-10%
One formulation of the shaving composition of this invention comprises the following components in the following weight percentages.
PART A
COMPONENT (WT %)
Igepon AC-78 66.45
Polyox WSR N-3000 (Polyethylene Oxide) 28.16
Methylparaben 0.30
Propylparaben 0.10
Germall 115 0.20 PART B COMPONENT (WT %) Syloid 244 4.79
100.00 TOTAL
The method of preparation for this particular formulation is as follows:
1. Weigh out Part A in a Hobart mixer and blend thoroughly.
2. Wet granulate Part A by adding 20% by weight isopropyl aicohol (99.5% pure) to the above formula for part A. (NOTE: The granulation step is critical. The isopropyl alcohol should be added slowly but continuously in order that the granulation does not assume a gummy texture.)
3. The granulated mixture is then dried either by spreading it out in trays at room temperature or by oven drying at about 1 ooh for about 24 hours. In either case, the mixture, if prepared correctly, will be sufficiently dry after about 24 hours. Suitable preparation and drying will be evidenced by the relative ease in the handling of the mixture in the following steps.
4. The dried granulation is then screened by passing the composition through a 20-mesh screen.
5. Part B is then added to the screened formulation of Part A. The two components are blended well such that a free-flowing granular powder is formed.
6. The composition is then compressed into the desired solid form using a suitable press.
The present invention will be further illustrated, by way of example, with reference to the accompanying drawings, in which:
Figure 1 is a perspective view of a first embodiment of this invention; and
Figure 2 is a perspective view of a second embodiment of this invention.
The shaving composition of this invention may be readily formed into a variety of solid configurations, each adapted to a particular end use. One such configuration, as illustrated in
Fig. 1 is a round disc shaped form of a diameter ranging from about 1 inch to about 3 inches (2.54 cm to 7.62 cm) and being from about 1/16 to about 1/4 inch (0.16 cm to 0.64 cm) thick. The thickness of the disc would be tailored such that a sufficient amount of shaving composition would be present to provide the anticipated number of shaving applications envisioned by the manufacturer of the device. Another suitable form, as illustrated in Fig. 2, is a rectangular sliver designed to be of suitable size to be adhered to either the razor head or the razor guard of a particular blade type razor. The exact dimensions of the rectangular sliver would, of course, vary depending upon the exact configuration of the blade type razor for which it was designed to be used. However, suitable sizes would range from about 1 inch to about 1-3/4 inches (2.54 cm to 4.46 cm) long by 1/4 inch to about 3/8 inch (0.64 cm to 0.96 cm) wide by about 1/16 to about 1 /4 inch (0.16 cm to 0.64 cm) thick. The shaving composition of this invention, however, may be readily formed into a variety of other shapes, and the scope of the invention herein should not be read as being limited to the two specificshapes disclosed hereinabove.
Claims (11)
1. A solid shaving composition comprising:
a. a water soluble polyethylene oxide polymer of a molecular weight of 400,000 or less in an amount ranging from 1 to 65 weight percent.
b. a trackability component in an amount ranging from 20 to 80 weight percent.
c. a preservative component in an amount ranging from 0.005 to 7.5 weight percent and
d. an anti-caking component in an amount ranging from 1 to 20 weight percent.
2. A shaving composition as claimed in claim 1, further comprising a humectant component in an amount of up to 20 weight percent.
3. A shaving composition as claimed in claim 1 or 2, further comprising a lubricant component in an amount of up to 10 weight percent.
4. A shaving composition as claimed in claim 1, 2 or 3, wherein the trackability component comprises a sulfa ethyl ester derived from isothionic acid and a coconut oil-based fatty acid of the general formula. RCOOCH2 CH2 SO3 Na, where R is an alkyl group.
5. A shaving composition as claimed in claim 1, 2 or 3, wherein the trackability component is selected from stearic acid, other soap-forming fatty acids, alkali metal salts of stearic acid and other soap-forming fatty acids, detergents suitable for topical application, and combinations thereof.
6. A shaving composition as claimed in any preceding claim, wherein the preservative component is selected from potassium sorbate, glutaraldehyde methylparaben, propylparaben, sodium edetate, imidazolidinylurea, and combinations thereof.
7. A shaving composition as claimed in any preceding claim, wherein the anti-caking component is selected from silica gel, calcium phosphate, magnesium carbonate, calcium silicate, magnesium silicate and talc.
8. A shaving composition as claimed in claim 3 wherein the lubricant component is selected from magnesium stearate, zinc stearate and combinations thereof.
9. A shaving composition as claimed in claim 2, wherein the humectant component is selected from glycerin, propylene glycol and sorbitol.
10. A shaving composition as claimed in any preceding claim, in the form of a disc having a diameter of from 1.0 to 3.0 inches (2.54 to 7.62 cm) and a thickness of from 1/16 to 1/4 inch (0.16 to 0.64 cm).
11. A shaving composition as claimed in any one of claims 1 to 9 in the form of a rectangular prism having a length of from 1.0 to 1.75 inches (2.54 to 4.46 cm), a width of from 0.25 to 0.375 inches, (0.64 to 0.96 cm) and a thickness of from 0.0625 to 0.25 inches (0.16 to 0.64 cm).
1 2. A shaving composition as claimed in claim 10 or 11 wherein the solid is operably attached to a blade razor or razor guard.
1 3. A solid shaving composition, substantially as hereinbefore described, exemplified and illustrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08310640A GB2138438B (en) | 1983-04-20 | 1983-04-20 | Shaving composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08310640A GB2138438B (en) | 1983-04-20 | 1983-04-20 | Shaving composition |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8310640D0 GB8310640D0 (en) | 1983-05-25 |
| GB2138438A true GB2138438A (en) | 1984-10-24 |
| GB2138438B GB2138438B (en) | 1986-11-05 |
Family
ID=10541351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08310640A Expired GB2138438B (en) | 1983-04-20 | 1983-04-20 | Shaving composition |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2138438B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2423494A (en) * | 2006-03-23 | 2006-08-30 | Unilever Plc | Razor head including acyl isethionate surfactant dispenser |
| EP2218437A1 (en) * | 2009-02-17 | 2010-08-18 | The Gillette Company | Shaving compositions comprising dye-loaded particles |
| US20110041339A1 (en) * | 2009-08-21 | 2011-02-24 | The Gillette Company | Hair Removal Device |
| WO2016100001A1 (en) | 2014-12-18 | 2016-06-23 | The Gillette Company | Lubricating members for razor cartridges |
| WO2016100000A1 (en) | 2014-12-18 | 2016-06-23 | The Gillette Company | Lubricating members having hydrophobic components for razor cartridges |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3231565B1 (en) | 2016-03-31 | 2019-09-18 | The Gillette Company LLC | Razor cartridge with fluid management |
| EP3231564B1 (en) | 2016-03-31 | 2020-07-01 | The Gillette Company LLC | Razor cartridge with fluid management system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1566810A (en) * | 1976-06-04 | 1980-05-08 | Colgate Palmolive Co | Soap bar manufacture |
-
1983
- 1983-04-20 GB GB08310640A patent/GB2138438B/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1566810A (en) * | 1976-06-04 | 1980-05-08 | Colgate Palmolive Co | Soap bar manufacture |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2423494A (en) * | 2006-03-23 | 2006-08-30 | Unilever Plc | Razor head including acyl isethionate surfactant dispenser |
| EP2218437A1 (en) * | 2009-02-17 | 2010-08-18 | The Gillette Company | Shaving compositions comprising dye-loaded particles |
| WO2010096322A1 (en) * | 2009-02-17 | 2010-08-26 | The Gillette Company | Shaving compositions comprising dye-loaded particles |
| US20110041339A1 (en) * | 2009-08-21 | 2011-02-24 | The Gillette Company | Hair Removal Device |
| WO2011022321A3 (en) * | 2009-08-21 | 2011-04-14 | The Gillette Company | Hair removal device |
| CN102481241A (en) * | 2009-08-21 | 2012-05-30 | 吉列公司 | hair removal device |
| EP2286787A3 (en) * | 2009-08-21 | 2012-10-24 | The Gillette Company | Hair removal device |
| WO2016100001A1 (en) | 2014-12-18 | 2016-06-23 | The Gillette Company | Lubricating members for razor cartridges |
| WO2016100000A1 (en) | 2014-12-18 | 2016-06-23 | The Gillette Company | Lubricating members having hydrophobic components for razor cartridges |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2138438B (en) | 1986-11-05 |
| GB8310640D0 (en) | 1983-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4381293A (en) | Shaving composition | |
| CA2072319C (en) | Ampholyte terpolymers providing superior conditioning properties in skin and nail care products | |
| US5858343A (en) | Post-foaming shaving gel including poly(ethylene oxide) and polyvinylpyrrolidone in a preferred range of weight ratios | |
| US5076953A (en) | Skin cleansing synbars with low moisture and/or selected polymeric skin mildness aids | |
| EP0268164B1 (en) | Stable and quick-breaking topical skin compositions | |
| NZ226220A (en) | Toilet bar soap comprising synthetic surfactant, moisturiser, soap and two or more polymeric skin-feel and mildness aids | |
| NZ226219A (en) | Toilet bar soap comprising synthetic surfactant, moisturiser, soap and polymeric skin-feel and mildness aid | |
| US5811107A (en) | Skin cleanser | |
| RU2211023C2 (en) | Shaving non-aerosol gel composition | |
| EP0858315B1 (en) | Solid shaving compositions | |
| GB2138438A (en) | Shaving composition | |
| JPS60152407A (en) | External preparation for skin blended with granule | |
| EP0140325B1 (en) | Cosmetic composition | |
| US4996240A (en) | Synthetic polymer propellant systems | |
| AU600039B2 (en) | Post-foaming gel containing certain dialkanolamide or monoalkanolamide | |
| EP0609247B1 (en) | Skin cleanser | |
| CA1201068A (en) | Shaving composition | |
| US5180753A (en) | Process for the manufacture of synthetic polymer propellant systems | |
| JPS5940198B2 (en) | Improved solid detergent | |
| JPS58167700A (en) | Soap composition | |
| RU98100082A (en) | SHAVING GEL WITH DELAYED FOAMING CONTAINING COMPLEX ACID MONOESTER CONTAINING 4-10 CARBON ATOMS AND ALCOHOL CONTAINING 16-18 CARBON ATOMS | |
| JPS59199623A (en) | Shaving composition | |
| US4062939A (en) | Perfluorocarbon resins in a hair and scalp conditioning and cleansing composition | |
| JPH05221822A (en) | Cosmetic | |
| EP0251462A2 (en) | Polymer-propellant compositions forming foamed structures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |